EP 3173658 B1 20191016 - DUAL-TYPE WAVE GEAR DEVICE
Title (en)
DUAL-TYPE WAVE GEAR DEVICE
Title (de)
DUALTYP-WELLENGETRIEBEVORRICHTUNG
Title (fr)
DISPOSITIF D'ENGRENAGE À ONDE DE TYPE DOUBLE
Publication
Application
Priority
- JP 2014149374 A 20140723
- JP 2015069246 W 20150703
Abstract (en)
[origin: EP3173658A1] An externally toothed gear of a dual-type strain wave gearing is provided with first and second external teeth (7, 8) having different teeth numbers. The first and second external teeth (7, 8) are flexed by a wave generator by the same flexing amount, into an ellipsoidal shape. The average pressure angle (±1) of main-tooth-surface sections of tooth profiles (70) of the first external teeth (7) having a low teeth number is less acute than the average pressure angle (±2) of main-tooth-surface sections of tooth profiles (80) of the second external teeth (8) having a high teeth number. Accordingly, a dual-type strain wave gearing can be achieved with which the first and second external teeth having different teeth numbers can be suitably flexed to form excellent meshing states with respective internally toothed gears.
IPC 8 full level
F16H 1/32 (2006.01); F16H 49/00 (2006.01)
CPC (source: EP KR RU US)
F16C 19/06 (2013.01 - US); F16H 1/32 (2013.01 - KR RU); F16H 49/001 (2013.01 - EP KR US); F16H 55/16 (2013.01 - RU); F16C 2370/00 (2013.01 - US); F16H 1/32 (2013.01 - EP US); F16H 2049/003 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3173658 A1 20170531; EP 3173658 A4 20180502; EP 3173658 B1 20191016; BR 112017000374 A2 20180327; BR 112017000374 B1 20230214; CN 106536975 A 20170322; CN 106536975 B 20181204; JP 2016023746 A 20160208; JP 6218692 B2 20171025; KR 101838926 B1 20180315; KR 20170010325 A 20170126; MX 2017001003 A 20170901; RU 2655578 C1 20180528; TW 201616013 A 20160501; TW I620883 B 20180411; US 10197145 B2 20190205; US 2017198802 A1 20170713; WO 2016013382 A1 20160128
DOCDB simple family (application)
EP 15824078 A 20150703; BR 112017000374 A 20150703; CN 201580038727 A 20150703; JP 2014149374 A 20140723; JP 2015069246 W 20150703; KR 20167036440 A 20150703; MX 2017001003 A 20150703; RU 2016148942 A 20150703; TW 104123407 A 20150720; US 201515327750 A 20150703